ISI offers membership to organizations, from both the public and private sector. Individuals may become credentialed to demonstrate their expertise in sustainable infrastructure. As of June 2016, more than 4,500 professionals and students from 20 countries had obtained the ENV SP credential and 13 projects had been awarded an Envision rating. 20% of credentialed professionals work for federal, state and local government agencies.

Members of the APWA Emerging Leaders Academy Class V developed the following documents for public works departments to use to help them join the Institute for Sustainable infrastructure (ISI).


Use these documents to join your colleagues in transforming the way public works infrastructure is developed, operated, and maintained.

Sample Proclamation

Sample ISI Resolution

City of Thousand Oaks Staff Report

Town of Westwood Sample Letter